163203072256 has 81 divisors (see below), whose sum is σ = 379060438239. Its totient is φ = 69924782592.

The previous prime is 163203072251. The next prime is 163203072281. The reversal of 163203072256 is 652270302361.

The square root of 163203072256 is 403984.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (163203072251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45244405 + ... + 45248011.

Almost surely, 2^163203072256 is an apocalyptic number.

163203072256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

163203072256 is the 403984-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163203072256

163203072256 is an abundant number, since it is smaller than the sum of its proper divisors (215857365983).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163203072256 is an frugal number, since it uses more digits than its factorization.

163203072256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244 (or 3616 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 163203072256 in words is "one hundred sixty-three billion, two hundred three million, seventy-two thousand, two hundred fifty-six".